ADG708/ADG709 Data Sheet
OUTPUT
3V
50%
ENABLE
DRIVE (V
IN
)
50%
0V
V
O
t
ON
(EN)
0V
0.9V
O
0.9V
O
t
OFF
(EN)
A2
D
*SIMILAR CONNECTION FOR ADG709.
A1
A0
EN
GND
ADG708*
S1
S2 TO S8
V
IN
35pF
V
DD
V
SS
V
DD
V
SS
V
S
300
R
L
C
L
V
OUT
50
00041-026
Figure 26. Enable Delay, t
ON
(EN), t
OFF
(EN)
LOGIC INPUT
(V
IN
)
3V
0V
V
OUT
Q
INJ
= C
L
×
ΔV
OUT
A2
V
OUT
V
DD
D
A1
A0
EN
GND
ADG708*
C
L
1nF
V
DD
S
V
IN
R
S
V
SS
V
SS
V
S
*SIMILAR CONNECTION FOR ADG709.
ΔV
OUT
00041-027
Figure 27. Charge Injection
V
S
V
OUT
50
NETWORK
ANALYZER
R
L
50
GND
S
D
V
S
OFF ISOLA
TION = 20 log
V
OUT
0.1
µF
V
DD
A2
A1
A0
EN
2.4V
0.1µF
V
SS
V
DD
V
SS
50
00041-028
Figure 28. Off Isolation
*SIMILAR CONNECTION FOR ADG709.
V
OUT
V
S
A2
D
A1
A0
EN
GND
ADG708*
S1
S2
S8
2.4V
NETWORK
ANALYZER
NETWORK
ANALYZER
R
L
50
V
OUT
0.1
µF 0.1
µF
V
DD
V
SS
V
DD
V
SS
50
V
S
50
00041-029
CHANNEL-TO-CHANNEL CROSSTALK = 20 log
Figure 29. Channel-to-Channel Crosstalk
Rev. E | Page 16 of 20
Data Sheet ADG708/ADG709
0.1µF 0.1µF
V
S
V
OUT
50
NETWORK
ANALYZER
R
L
50
GND
S
D
V
OUT
WITH SWITCH
V
OUT
WITHOUT SWITCH
INSER
TION LOSS = 20 log
V
DD
A2
A1
A0
EN
2.4V
V
SS
V
DD
V
SS
00041-030
Figure 30. Bandwidth
Rev. E | Page 17 of 20
ADG708/ADG709 Data Sheet
TERMINOLOGY
V
DD
Most positive power supply potential.
V
SS
Most negative power supply in a dual-supply application. In
single-supply applications, tie V
SS
to ground at the device.
GND
Ground (0 V) reference.
S
Source terminal. Can be an input or output.
D
Drain terminal. Can be an input or output.
Ax
Logic control input.
EN
Active high enable.
R
ON
Ohmic resistance between D and S.
R
FLAT (ON)
Flatness is defined as the difference between the maximum and
minimum value of on resistance as measured over the specified
analog signal range.
I
S
(Off)
Source leakage current with the switch off.
I
D
(Off)
Drain leakage current with the switch off.
I
D
, I
S
(On)
Channel leakage current with the switch on.
V
D
(V
S
)
Analog voltage on Terminal D and Terminal S.
C
S
(Off)
Off switch source capacitance. Measured with reference to ground.
C
D
(Off)
Off switch drain capacitance. Measured with reference to ground.
C
D
, C
S
(On)
On switch capacitance. Measured with reference to ground.
C
IN
Digital input capacitance.
t
TRANSITION
Delay time measured between the 50% and 90% points of the
digital inputs and the switch on condition when switching from
one address state to another.
t
ON
(EN)
Delay time between the 50% and 90% points of the EN digital
input and the switch on condition.
t
OFF
(EN)
Delay time between the 50% and 90% points of the EN digital
input and the switch off condition.
t
OPEN
Off time measured between the 80% points of both switches
when switching from one address state to another.
Off Isolation
A measure of unwanted signal coupling through an off switch.
Crosstalk
A measure of unwanted signal that is coupled through from one
channel to another as a result of parasitic capacitance.
Charge
A measure of the glitch impulse transferred from injection of
the digital input to the analog output during switching.
Bandwidth
The frequency at which the output is attenuated by 3 dB.
On Response
The frequency response of the on switch.
On Loss
The loss due to the on resistance of the switch.
V
INL
Maximum input voltage for Logic 0.
V
INH
Minimum input voltage for Logic 1.
I
INL
(I
INH
)
Input current of the digital input.
I
DD
Positive supply current.
I
SS
Negative supply current.
Rev. E | Page 18 of 20

ADG709BRUZ-REEL7

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Multiplexer Switch ICs 4:1 200MHz 4 Ohm CMOS
Lifecycle:
New from this manufacturer.
Delivery:
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